Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
  • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
  • B62D1/16—Steering columns
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
  • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
  • B62D1/16—Steering columns
  • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
  • B62D1/184—Mechanisms for locking columns at selected positions
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
  • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
  • F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
  • F16B21/125—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes radially resilient or with a snap-action member, e.g. elastic tooth, pawl with spring, resilient coil or wire
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
  • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
  • F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
  • F16D3/38—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
  • F16D3/40—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
  • F16D2300/00—Special features for couplings or clutches
  • F16D2300/12—Mounting or assembling
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T403/00—Joints and connections
  • Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
  • Y10T403/1608—Holding means or protector functioning only during transportation, assembly or disassembly
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T403/00—Joints and connections
  • Y10T403/32—Articulated members
  • Y10T403/32549—Articulated members including limit means
  • Y10T403/32557—Articulated members including limit means for pivotal motion

Definitions

• the invention relates to a securing device for temporarily restricting the freedom of movement of a universal joint of a shaft assembly of a steering column, comprising a locking element which extends in a longitudinal direction and longitudinal front has a free front end, and on the longitudinal rear of a handling means is arranged, said Bar element has a blocking body and at least one positioning element which extends adjacent to the blocking body in the longitudinal direction and is formed in a transverse direction transversely longitudinally relative to the blocking body resilient.
• a method for temporarily restricting the freedom of movement of a universal joint is also the subject of the invention.
• the steering torque introduced into the steering wheel is introduced via the steering shaft into the steering gear.
• the steering shaft is designed to compensate for the angular offset as a propeller shaft and generally has an intermediate steering shaft, which is connected via a respective universal joint with the steering wheel side steering shaft and the input shaft of the steering gear.
• Such an arrangement is known for example from DE 10 2008 041 153 A1.
• Universal joints also referred to as universal joints, allow the mutual pivoting of the mutually articulated shaft parts about two perpendicular axes of articulation of the pivot pin of a spider, the intersecting hinge axes lie in the plane of the spider.
• the two lying on the first hinge axis pivot pin are rotatably mounted about the first hinge axis in the pairwise opposite fork arms of a first yoke, which is connected to the one shaft part.
• the second pivot pin are rotatably mounted about the second hinge axis rotatably in the pairwise opposite fork arms of a second yoke, which is connected to the second shaft part.
• the free mobility of the shaft parts in a predetermined angular range is required for the transmission of torque.
• the shaft parts are bent relative to a hinge axis more than provided in the installed position, for example, at right or acute angle to each other, and at the same time rotated about the other hinge axis against each other.
• the joint forks can strike against each other and be damaged. If a torque is applied in an unfavorable angular position, moreover, the bearing of the pivot pin can be damaged.
• a securing device In order to avoid damage due to unfavorable relative movements of the shaft parts during transport, a securing device is known, for example from EP 0 727 341 A1, with which the movement of a universal joint can be blocked.
• the known securing device comprises an elongated locking element, which has at its rear end a handling means and a front, free end in the longitudinal direction extending blocking body which is insertable between the inside of a fork arm of the first yoke and a pivot pin mounted in the second yoke.
• the releasable fixing is effected by means of a blocking body adjacent in the transverse direction, resilient positioning, which holds the locking element by snapping into position.
• the known safety device only allows the blocking of all degrees of freedom of the universal joint, and only at substantially perpendicular to each other shaft parts.
• the vehicle assembly is difficult.
• the entire assembly can not be done in the angled position, therefore, the safety device must be removed before or during assembly, whereby the said unfavorable angular positions occur and thereby damage can be caused.
• an object of the present invention to provide an improved safety device, in particular for a steering shaft of a motor vehicle, which allows a simplified assembly and provides improved protection against damage.
• the invention proposes that the locking element in each case has a positioning element in the transverse direction on both sides of the blocking body.
• the blocking body on two opposite outer sides in each case a positioning element. Consequently, the blocking body can be elastically supported transversely between the resilient positioning elements in a universal joint
• the locking element is used with the free end in advance between the opposite fork arms of one of the two joint forks, wherein the outer sides of the positioning are directed from the inside against the joint forks.
• the dimensions of the locking element are selected such that the two positioning elements abut with their outer sides facing away from the blocking body against the mutually facing inner sides of the opposite fork arms of the yoke.
• the blocking effect is exerted by the blocking body in that the approach of surfaces of the two joint forks, which in a pivoting about one of the
• the blocking body serves as a stop, which is supported with a first support surface on a movable surface of a yoke and with a second support surface on a relative to the movable surface fixed surface on the other yoke.
• the blocking body has a first support surface with a surface normal, which is perpendicular to the longitudinal and transverse direction in the height direction, and a second support surface with a surface normal, which is opposite to the height direction perpendicular to the longitudinal and transverse directions , The first and second support surface are thus formed by the opposite surfaces of the blocking body with
• the first support surface is formed by the upper side and the second support surface by the lower side of the blocking body, the two surfaces on which the positioning elements are located and have the surface normals in the transverse direction can be considered as side surfaces.
• the front free end of the blocking body is bounded in the longitudinal direction by the front end face whose surface normal points in the longitudinal direction forward.
• Blockage of the universal joint in only one degree of freedom of movement can be achieved by inserting the locking element between the fork base of the first yoke, from which the first fork arms extend, and the spider, so that the blocking body with the one support surface on its underside abuts the fork base.
• Said first fork arms support the first pivot pins of the journal cross rotatably about the first hinge axis, which consequently extends in the transverse direction of the blocking element used. If an attempt is then made to pivot the universal joint about this first joint axis, one of the second fork arms of the second joint fork inevitably approaches the bottom of the fork of the first joint fork, and thus also the support surface on the upper side of the blocking body. If the thickness of the blocking body, which corresponds to the distance of the two opposite support surfaces from each other, is such that it corresponds to the shortest distance between the fork base of the first
• the length of the blocking body can be chosen to be greater than the distance of the fork arms from each other.
• An advantage of the embodiment according to the invention is that the blocking body is automatically centered in an optimal position in the universal joint after insertion by the positioning between the fork arms, so that a targeted blocking of a single degree of freedom of movement can be achieved. As a result, the assembly compared to a rigid blockage of the entire joint is facilitated. In addition, the joint forks are reliably prevented by the locking element from being hit by unfavorable angular positions against each other and thereby damaged. In a still possible rotation about the second hinge axis, namely, the rotation is limited by the fact that the second fork arms at the latest at a
• the locking element is mirror-symmetrical with respect to a mirror plane which intersects the blocking body in the longitudinal direction and which is perpendicular to the transverse direction in a height direction, and / or mirror-symmetrical with respect to a second mirror plane which intersects the blocking body in the longitudinal direction and lies in the transverse direction. Due to the mirror-symmetrical design with respect to one, preferably two mutually perpendicular, the locking element in the longitudinal direction intersecting mirror planes can be ensured that an inadvertent incorrect insertion of the safety device is practically excluded and the inventive automatic centering of the locking element between the fork arms is guaranteed.
• the blocking body is cuboid with a predetermined length in the longitudinal direction, a predetermined width in the transverse direction and a predetermined thickness in the height direction.
• the length should be greater than or equal to the distance of the fork arms of the universal joint to be blocked, so that the pivoting about both
• Joint axes can be limited.
• the width is chosen so that the blocking body can be used with the two-sided positioning between the fork arms.
• the thickness is less than or equal to the free distance between the fork base of a joint fork and the spider or the fork arms of the other yoke.
• the width of the blocking body is greater than its thickness.
• the base body from which the blocking body and the positioning elements extend to the free end.
• the main body may be formed as part of the blocking body or pass into it.
• On the main body behind a handling means may be attached.
• the base body can serve to position the positioning elements relative to the blocking body.
• the positioning elements in the form of Leaf springs may be formed, which are held on one side with its rear end to the base body, and extend in the longitudinal direction forwardly in each case at a distance substantially parallel to the blocking body.
• the positioning elements are directed with their free ends of the leaf springs to the free end of the positioning or blocking body.
• the free ends of the positioning can in the transverse direction to
• Blocking be resiliently bent against the side surfaces of the blocking body.
• the width of the locking element is reduced by the distance, and thus facilitates the insertion of the locking element.
• the positioning elements formed in this way ensure reliable positioning.
• Such leaf springs can also be with low
• the securing device is formed as a one-piece plastic part, preferably as a plastic injection molded part.
• Plastics can be optimally adapted in terms of their material properties such as hardness, strength, elasticity and the like to the expected requirements, for example, they may be softer than the material of the joint components to avoid damage, and at the same time strong enough not to be crushed during blocking or break. Due to the elasticity of the plastic material, the inventive
• Positioning elements are integrated easily and functionally in one piece. In addition, production in plastic injection molding is particularly efficient.
• At least one of the positioning elements on its side facing away from the blocking body has at least one on or molded-in locking element.
• a latching element can be realized for example by a locking projection or cam formed on the outside of the positioning element.
• the locking elements may also include recesses that can cooperate with projections of a yoke.
• a further embodiment provides that two locking elements are arranged at a distance in the longitudinal direction to each other.
• the locking elements may be formed, for example, as projections or projections, the distance from each other corresponds to the width of a yoke.
• the positioning elements can be positioned exactly in the longitudinal direction Include yoke between them or snap into this, so that a clear positioning of the securing device is guaranteed in the universal joint.
• At least one positioning element is designed to be tapered towards the free end with respect to the longitudinal direction of the blocking body. This allows the ends of the positioning in the longitudinal direction to the free end of the
• Bar element converge toward arrow-shaped.
• the insertion bevel thus formed facilitates insertion between the fork arms of a yoke.
• the positioning elements may also be tapered or rounded designed to facilitate insertion and removal.
• the handling means may comprise a handle.
• the handle may be designed for example as a handle ring or knob, directly or via a shaft with the
• Blocking body or the main body of the locking element can be connected.
• the handle can be ergonomically designed to a simple and safe manual or automated insertion and removal of
• the handle can be integral with the
• Bar element may be formed, for example as a plastic injection molded part.
• the mobility can be specifically designed by a method for temporarily restricting the freedom of movement of a universal joint by inserting a securing device, wherein the universal joint comprises:
• Pivot pins are rotatably mounted about a first hinge axis in the first bearings of the first yoke, and two second pivot pins are rotatably mounted about a second hinge axis in the second bearings of the second yoke,
• the securing device comprises a locking element with a blocking body which is releasably inserted transversely to the axial direction (longitudinal direction) of the first joint fork
• the pivoting of the second yoke relative to the first yoke is restricted with respect to a rotation about the first axis of articulation or
• a securing device according to the invention, the method can be realized particularly user friendly and secure.
• a securing device is used and fixed prior to transport for mounting in a universal joint, which can be accomplished thanks to the positioning with little effort and high security.
• Figure 2 shows a securing device according to the invention in a perspective
• FIG. 3 shows the securing device according to FIG. 2 in a top view
• FIG. 4 shows a detailed view of the universal joint of the steering column according to FIG. 1,
• Figure 5 shows a cross section through the universal joint according to Figure 4 with inserted
• Figure 6 shows a longitudinal section through the universal joint according to Figure 4 with inserted
• Figure 7 shows a longitudinal section through the universal joint as in Figure 5 without
• FIG. 8 shows a detailed view of the universal joint with a device according to the invention
• Figure 10 is a further detail view of the universal joint with an inventive
• FIG. 1 shows a steering column 1, which comprises a steering shaft 2.
• the steering shaft 2 has a steering shaft 21, at the rear end relative to the direction of travel
• Attachment portion 22 is formed for attachment of a steering wheel of a motor vehicle, not shown here.
• the steering shaft 21 is in a shell unit 3 to their
• the jacket unit 3 is held in a support unit 4, which fastening means 41, 42 has for fastening the steering column 1 to a vehicle body, not shown.
• the front end of the steering spindle 21 relative to the direction of travel protrudes forward from the jacket unit 3 and is articulated to an intermediate shaft 23 via a universal joint 5, also referred to as a universal joint.
• the intermediate shaft 23 has a
• tubular outer shaft 24 in which an inner shaft 25 torque-locked in
• a further universal joint 6 is arranged on the inner shaft 25, which connects the intermediate shaft 23 articulated to a coupling piece 26 for the torque-locking connection to a steering gear, not shown here.
• a securing device 7 according to the invention used, which is shown separately in Figures 3 and 4.
• the securing device 7 has a locking element 71 which extends in a
• Lengthwise L extends, and at the rear end of a handling means 72 is attached.
• the locking element 71 has a blocking body 73 which extends from a
• Main body 74 extends integrally forward.
• the blocking body 73 has a
• first support surface 731 which is formed by the top side facing the viewer in Figure 3, whose surface normal from the
• arranged support surfaces 731 and 732 corresponds to the thickness h of the blocking body 73.
• the transverse direction B of the blocking body 73 has a width b; in the longitudinal direction L has the
• Two positioning elements 75 are attached with their rear ends in front to the base body 74 and extend in the longitudinal direction L forwardly substantially parallel to the side surfaces 733 and 734 of the blocking body 73, with a distance A in the transverse direction B, i. measured perpendicular to the longitudinal direction L.
• the positioning elements 75 are preferably formed integrally with the base body 74 as a plastic molding. Due to the elasticity of the plastic form the
• Positioning elements 75 leaf springs, which are fixed with their rear ends on the base body 74, and the front ends of which can be moved by the distance A resiliently transversely against the blocking body 73.
• first locking elements 76 In the region of their front ends are on the positioning elements 75 outside, i. formed on their blocking body 73 facing away from the outer sides, first locking elements 76 in the form of projections or cams.
• the locking elements 76 are available from the
• Introductory bevels 761 of the two positioning elements 75 an arrow-shaped converging forward arrangement.
• the latching elements 76 preferably project from the positioning elements 75 at most by the amount of the distance A to the outside. Thereby, the positioning members 75 for insertion in the transverse direction B against the blocking body 73 can be bent to the Bar element 71 between fork arms 51 1, 512 of a universal joint 5 to be inserted, which are at a distance from each other, which the width of the latch body 71 without the
• Detent elements 76 measured in the transverse direction B via the positioning elements 75 corresponds.
• first locking elements 76 At a distance p in the longitudinal direction L to the first locking elements 76 second locking elements 77 are also formed as projections on the outside of the positioning elements 75.
• the handling means 72 comprises a grip piece 78, which is attached via a shaft 79 at the rear to the blocking body 73 or its base body 74.
• the handling means 72 is integrally formed with the locking element 71, so that the securing device 7 can be made as a whole as a one-piece plastic injection molded part.
• the securing device 7 is in the illustrated, preferred embodiment
• the securing device 7 is also formed mirror-symmetrically in the illustrated preferred embodiment to a mirror plane which is parallel to the plane of the figure 3 in the longitudinal direction L and the transverse direction B.
• FIG. 4 shows an enlarged view of the universal joint 5 in a perspective view
• FIG. 5 shows a cross section through the securing device 7 used
• FIG. 6 shows a longitudinal section.
• the universal joint 5 has a first yoke 51 attached to the steering shaft 21 and having two opposite first fork arms 51 1 and 512 extending from a first fork base 513.
• the first fork arms 51 1 and 512 have mutually aligned first bearing 514, in which first bearing pin 81 of a
• Spider cross 8 are rotatably mounted about a first hinge axis 91.
• the universal joint 5 has a second yoke 52 attached to the intermediate shaft 23 and having two opposing second fork arms 521 and 522 extending from a second yoke 523.
• the second fork arms 521 and 522 have mutually aligned second bearing 524, in which second bearing pins 82 of a spider 8 are rotatably mounted about a second hinge axis 92.
• the first hinge axis 91 and the second hinge axis 92 are perpendicular to each other and lie in the same plane of the pin cross. 9
• the locking element 71 is the
• Safety device 7 inserted into the first yoke 51 between the fork arms 51 1 and 512, so that they rest against the positioning elements 75 from the outside.
• Figure 5 is removable, that the width of the fork arms 51 1 and 512 corresponds to the distance p of the locking elements 76 and 77 from each other.
• the locking element 71 is fixed in the longitudinal direction L to the fork arms 51 1 and 512.
• the fact that the positioning elements 75 are mounted resiliently relative to the blocking body 73, they ensure that the blocking body 73 is centered by the spring force in the transverse direction B automatically between the fork arms 51 1 and 512.
• FIG. 6 shows that the blocking body 73 abuts with its first support surface 731 on the first forked base 513, or is supported against it. With the second support surface 732, the blocking body 73 bears against the articulation-side ends of the second fork arms 521 and 522 with little play. It can be seen from this illustration that the length I of the blocking body 73 corresponds at least to the distance between the second fork arms 521 and 522 measured on the outside. As a result, the blocking body 73 is always in the inserted state between the second fork arms 521 and 522 and the first fork base 513.
• Blockier Sciencess 73 is supported on the first forked base 513. As a result, the pivoting about the first hinge axis 91 is blocked. On the other hand is one
• Pivoting around the second hinge axis 92 is still possible because, due to the rounded configuration of the fork arms 521 and 522, no force is exerted on the blocking body 73.
• Blocking body 73 to the first fork arms 51 1 and 512 reliably positioned parallel to the second hinge axis 92, so that the second fork arms 521 and 522 are securely supported and thus the desired movement restriction is ensured.
• the securing device 7 can be easily pulled out of the universal joint 5 on the handle 78 of the handling means 72. This is possible because the positioning elements 75 can be elastically bent against the blocking body 73 such that the locking elements 76 can slide between the fork arms 51 1 and 512.
• the insertion of the securing device 7 is characterized by the
• Insert bevels 761 which prevent damage to the positioning elements 75 and ensure a self-locking engagement.
• Spatial region is filled or occupied in the inventive method by the blocking body 73, so that specifically the mobility is limited to the first hinge axis 91.
• FIGS. 8 to 10 show a second embodiment of the invention
• the locking element 71 of the securing device 7 is inserted into the first yoke 51 between the fork arms 51 1 and 512, so that they rest against the positioning elements 75 from the outside.
• the securing device 7 is inserted in the yoke 51 of the steering column, between one support member 751 and the positioning member 75 of the fork arm 51 1 is added and between the other support member 751 and the other positioning member 75 of the fork arm 512 is added.
• the support elements 751 have at their free end a
• the contact portion 752 is in contact with the support unit 4 of the steering column 1 and is supported on a rotation of the steering shaft 21 on the support unit 4 and thereby prevents rotation of the steering shaft 21 to their
• Rotation axis (longitudinal axis) 202.
• Securing device 7 not only the freedom of movement of the universal joint. 5 be restricted, but at the same time the rotation of the steering shaft 21 and the steering shaft 2 can be prevented. This can be dispensed with a separate anti-rotation.
• the support elements 751 each have an abutment portion 753, wherein this abutment portion 753 is formed so that the pivoting of the yoke 52 is limited to the second hinge axis 92 to an angular range. As can be seen in Figures 8 and 10, the pivoting is limited to ⁇ 90 ° about the second hinge axis 92, wherein the yoke 52 at the one abutting portion 753 of
• the abutment portion 753 is an arcuate recess in the edge region of
• Supporting element 751 is formed so that it corresponds to the outer stop geometry of the yoke 52.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Steering Controls (AREA)

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Citations (2)

Family Cites Families (15)

• 2015
  • 2015-08-11 DE DE102015215290.1A patent/DE102015215290B3/de not_active Expired - Fee Related
• 2016
  • 2016-07-18 WO PCT/EP2016/067067 patent/WO2017025279A1/de active Application Filing
  • 2016-07-18 PL PL16739190T patent/PL3334635T3/pl unknown
  • 2016-07-18 US US15/751,814 patent/US11084518B2/en active Active
  • 2016-07-18 EP EP16739190.3A patent/EP3334635B1/de active Active
  • 2016-07-18 ES ES16739190T patent/ES2758452T3/es active Active
  • 2016-07-18 CN CN201680046824.XA patent/CN107921985B/zh active Active

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